We are a licensed supplier of CU-Structural Soil

Minick Materials is a licensed supplier of CU-Structural Soil® (also known as CU-Soil®) developed at Cornell University as a way to safely bear pavement loads after compaction and yet still allow root penetration and vigorous tree growth.

CU-Soil® is intended for paved sites to provide adequate soil volumes for tree roots under pavements. It may be used under pedestrian mall paving, sidewalks, planting islands, and parking lots. CU-Soil® is an innovative medium installed under pavement that improves street tree vigor and prevents sidewalk failure, frequent pavement repair, virtually eliminates tripping lawsuits, and greatly reduces the replacement of dead trees every 7–10 years.

CU-Structural Soil® was patented and trademarked under the name 'CU-Soil®' to insure quality control.

CU-Structural Soil Resources

Using Porous Asphalt and 
CU-Structural Soil® Booklet
This 15-page booklet details how the combination of porous asphalt and CU-Soil® reduces runoff and improves water quality.                                  Download PDF


Using CU-Structural Soil® in the Urban Environment (Document)
Written by Urban Horticulture Institute at Cornell University this document outlines the "case" for using CU-Structural Soil®.Download PDF


CU-Structural Soil®: An Update After More Than a Decade of Use in the Urban Environment (Published Article)
This article discusses the successful use of CU-Structural Soil® with more than 10 years of data.
Download PDF


CU-Structural Soil® Graphics 
and Plan Views (Web page)
This web page presented by Urban Horticulture Institute at Cornell University offers exceptional drawings and diagrams.
View web page

National Geographic Article
You may also like to read Gel-Gravel-Soil Mix Gives City Trees Room to Grow by National Geographic. "Trees bring both comfort and measurable benefits to urban environments. The problem is that tree roots don't flourish under all that pavement. Now scientists think they may have found the answer."

"The whole thing is one of engineering of trees into infrastructure so they have the best chance of success from the get-go, not shoehorning them in as an afterthought," said Gregory McPherson, director of the U.S. Forest Service's Center for Urban Forest Research in Davis, California. Read now

Additional Information

If you have questions or need assistance with your application of CU-Structural Soil®, contact our sales manager at 405/789-2068 or use our online contact form.